/*
 * Copyright (C) 2018 xuexiangjys(xuexiangjys@163.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.xuexiang.xdlink.component.command.impl;

import com.xuexiang.xdlink.component.command.IResolveMessageCommand;
import com.xuexiang.xdlink.component.resolver.IMessageResolver;
import com.xuexiang.xdlink.exception.ResolverException;

/**
 * 解析数据缓存的命令
 *
 * @author xuexiang
 * @since 2018/8/13 下午11:26
 */
public class ResolveMessageCommand implements IResolveMessageCommand {

    private IMessageResolver mMessageResolver;

    public ResolveMessageCommand(IMessageResolver resolver) {
        mMessageResolver = resolver;
    }

    @Override
    public int resolve(byte[] data) throws ResolverException {
        if (mMessageResolver == null) {
            throw new ResolverException("MessageResolver must be set!");
        } else {
            return mMessageResolver.resolve(data);
        }
    }
}
